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bagirrra123 [75]
3 years ago
13

Fig. 2.1 is a drawing of a piece of plant tissue. (i) What name is given to this type of tissue? Choose your answer from the lis

t. ( palisade mesophyll, root hair, xylem ) (ii) Name the part labelled A in Fig. 2.1
Biology
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

The answer to Question (i) is Xylem

 

Explanation:

The Xylem is the vessel/tissue network in plants that carries and moves water and dissolved nutrients from the root to other areas of the plant (from the root to the stem to the leaves). The Xylem is an integral part of the plant that becomes wood.

Answer:

The answer to Question (ii) is Vessel Member

These are long and narrow plant cell types. Their structure comprises dual cell walls that can be categorized into primary and secondary walls found in the xylem. They are usually shorter in length than tracheids.

Tracheids are elongated cells in the Xylem of plants with a vascular system. Their primary role is the transportation of water and mineral salts.

Cheers!

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Answer:

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Malthus:

In every species in nature, some individuals survive while may others die.

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Explanation:

Darwin's revolutionary ideas were influenced by a number of scientists and thinkers of the time:

Jean Baptiste Lamarck:

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Thomas Malthus:

Thomas Malthus was not a biologist, but an economist who proposed the ideas that at the rate of the current population growth, human population would eventually suffer from famine and starvation.This would lead to the deaths of the weakest of the population. This idea inspired Darwin to formulate the idea of "the survival of the fittest".

Charles Lyell and James Hutton:

Charles Lyell and James Hutton were famous geologists who greatly influenced Darwin with their theories about the beginning and evolution of the Earth. Charles Lyell proposed that the present state of the Earth was a result of small, gradual changes. James Hutton theorized that the processes that too place at the beginning of the Earth were still in progress.

Lyell and Hutton's work paved the way for the formulation of the theory of natural selection.

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